Air-conditioning control system

ABSTRACT

In order to create a desired air-conditioned space by reducing influences to adjacent spaces and sending proper air-conditioning air to the target space, the air-conditioning control system is provided with: a first temperature setting unit to set a preset temperature for an air-conditioning target space which is among spaces under or between two indoor units adjacent to each other, the air-conditioning target space having been requested a change in the preset temperature by a user, the indoor units each including multiple blowout openings; a second temperature setting unit to set a preset temperature of an adjacent air-conditioning space adjacent to the air-conditioning target space; a first air-conditioning air control unit to determine a first blowout opening from among the multiple blowout openings for realizing the preset temperature set by the first temperature setting unit, to control temperature, airflow volume, and a blowout wind direction of the air-conditioning air sent out from the first blowout opening, and a second air-conditioning air control unit to determine a second blowout opening for realizing the preset temperature set by the second temperature setting unit, to control temperature, airflow volume, and a blowout wind direction of the air-conditioning air sent out from the second blowout opening.

TECHNICAL FIELD

The present invention relates to an air-conditioning control system toperform air-conditioning in a space such as an office where multipleusers are present, which can provide the multiple target users with acomfortable air-conditioned space by controlling multipleair-conditioning indoor units.

BACKGROUND ART

A general air-conditioning system operates the air conditioners toequalize the room temperature in the space. Patent Document 1, forexample, discloses an invention to eliminate temperature unevenness byturning blowout panels of multiple indoor units toward a predeterminedswirling direction to swirl the air of the entire room.

In contrast, such an air conditioning system is also used that canimprove user's comfort by providing air-conditioning control only for aspecific area in the space while achieving energy saving. PatentDocument 2, for example, discloses a technique in which the space issegmented into “a presence area” where a user is present, “an absencearea” where no user is present and “a boundary area” where the winddirection of an indoor unit is directed downward in order to generate anair curtain to keep the conditioning air in the presence area fromoutflowing into the absence area. Further, Patent Document 3 discloses atechnique in which, when multiple users are present adjacently, apersonal comfort level (PMV: Predicted Mean Vote) is calculated withrespect to each of an air-conditioning requester and adjacent persons togenerate a local airflow to the requester within a range not impairingthe adjacent persons' PMVs, and thereby create an air-conditioned spacein the area where the requester is present.

PRIOR ART DOCUMENTS Patent Documents

Patent Document 1: Japanese Patent Publication No. 4952722

Patent Document 2: Japanese Patent Publication No. 4165604

Patent Document 3: International Laid-Open Publication No. WO2008/87959

SUMMARY OF THE INVENTION Problems to be Solved by the Invention

In the prior arts, the number of the target areas is limited to thenumber of the indoor units and no consideration has been given on how tocontrol the area between indoor units. Because the local airflow to therequester influences the adjacent persons, the airflow controlled withinthe range not impairing the comfort of the adjacent persons sometimesfails to achieve the requester's personal comfort.

The present invention is made to solve the problems described above andaims to provide an air-conditioning control system which can create adesired air-conditioned space in a target area without limitation aboutthe number of indoor units and with influence as little as possible tothe adjacent persons.

Means for Solving the Problems

An air-conditioning control system which relates to the presentinvention includes: a first temperature setting unit to set a presettemperature for an air-conditioning target space which is among spacesunder or between two indoor units adjacent to each other, theair-conditioning target space having been requested a change in thepreset temperature by a user, the indoor units each including multipleblowout openings; a first air-conditioning air control unit to determinea first blowout opening to blow out air-conditioning air from among themultiple blowout openings of the multiple indoor units for realizing thepreset temperature set by the first temperature setting unit, to controltemperature and airflow volume of the air-conditioning air sent out fromthe first blowout opening, and to control a blowout wind direction ofthe air-conditioning air; a second temperature setting unit to set apreset temperature of an adjacent air-conditioning space adjacent to theair-conditioning target space; a second air-conditioning air controlunit to determine a second blowout opening to blow out air-conditioningair from among the multiple blowout openings of the multiple indoorunits for realizing the preset temperature set by the second temperaturesetting unit, to control temperature and airflow volume of theair-conditioning air sent out from the second blowout opening, and tocontrol a blowout wind direction of the air-conditioning air.

Effect of the Invention

According to the present invention, it will be possible to create adesired air-conditioned space in a target area with influence as littleas possible to the areas adjacent to the target area, to achievepersonal comfort of users in the adjacent areas as well as in the targetarea.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block configuration diagram of an air-conditioning controlsystem according to Embodiment 1 of the present invention;

FIG. 2 is a plan view showing a positional relation of air-conditioningindoor units, users, and sensors in a space;

FIG. 3 is a function block diagram of the air-conditioning controlsystem according to Embodiment 1 of the present invention;

FIG. 4 is a side view of users and indoor units;

FIG. 5 is a flowchart showing an operation of the air-conditioningcontrol system;

FIG. 6 is a diagram showing a determination procedure for changingvalues in a first blowout opening;

FIG. 7 is a diagram showing the angle and the direction of vanes in ablowout opening;

FIG. 8 is a table showing angles, temperatures, and airflow volumes atblowout openings, as well as temperatures at the time in a target areaand in adjacent areas;

FIG. 9 is a diagram showing a determination procedure for changingvalues in a second blowout opening;

FIG. 10 is a block configuration diagram of an air-conditioning controlsystem according to Embodiment 2 of the present invention; and

FIG. 11 is a block configuration diagram of an air-conditioning controlsystem according to Embodiment 3 of the present invention.

MODES FOR CARRYING OUT THE INVENTION Embodiment 1

FIG. 1 is a block diagram of an air-conditioning system according toEmbodiment 1 of the present invention. FIG. 2 is a plan view showing apositional relation of air-conditioning indoor units, users and sensorsin a space. The air-conditioning control system 10 is a system toimprove comfort of both of a target person and adjacent persons presentin a space air-conditioned by multiple air-conditioning indoor units 41to 44.

The air-conditioning control system 10 controls the indoor units 41 to44 using information on the space, the users' settings, and informationfrom the sensors. As shown in FIG. 1, the air-conditioning controlsystem 10 can be realized by a general hardware configuration whichincludes: a CPU (Central Processing Unit) 31; a ROM (Read Only Memory)32; a RAM (Random Access Memory) 33; a storage drive 34; an input/outputcontroller 38 to connect a mouse 35 and a keyboard 36 provided as inputdevices and a display 37 provided as a display device; a networkcontroller 39 provided as a communication means; and a bus 20 to connectthem. Also, the air-conditioning control system is connected, via anair-conditioning control network 21, to vanes 41 a to 44 d of theair-conditioning indoor units 41 to 44, fans 41 e to 44 e thereof,compressors 45 a to 48 a of air-conditioning outdoor units 45 to 48,temperature sensors 51 a to 51 i, and air-conditioning controllers 52 ato 52 i. At least a part of the air-conditioning control network 21 maybe a network which performs, for example, wireless communication.

First, the positions of the air-conditioning indoor units 41 to 44, theair-conditioning characteristics such as capacity of air conditioners,the positions of the sensors 51 a to 51 i, and the positions of theusers are inputted using, for example, the mouse 35 and the keyboard 36,and stored in the storage drive 34 of the air-conditioning controlsystem 10.

As shown in FIG. 2, the space is surrounded by walls. In the space, theair-conditioning indoor units 41 to 44 are arranged in a lattice. Eachindoor unit includes multiple blowout openings and the vanes 41 a to 44d installed at each blowout opening to change the blowout winddirection.

As shown in FIG. 2, the space is segmented into areas under the indoorunits and areas between the indoor units. In each area, a single user isseated in each of seats arranged in a lattice, and the temperaturesensors 51 a to 51 i and the air-conditioning controllers 52 a to 52 iare installed near the respective users. Although it is assumed herethat one sensor and one air-conditioning controller are to be installedfor each user, the number of them may be reduced to the number of userswho want air-conditioning. Also, each sensor or controller may bereplaced with a general personal computer (PC) or a user terminal suchas a smartphone. Also, some area may include multiple seats and users.

FIG. 3 is a function block diagram of the air-conditioning controlsystem 10 according to Embodiment 1. In FIG. 3, a first temperaturesetting unit 11, a second temperature setting unit 12, a firstair-conditioning air control unit 13, and a second air-conditioning aircontrol unit 14 are shown.

The functions of the first temperature setting unit 11, the secondtemperature setting unit 12, the first air-conditioning air control unit13, and the second air-conditioning air control unit 14 shown in FIG. 3are each realized by a combined usage of the CPU 31, the ROM 32, and theRAM 33 as hardware shown in FIG. 1.

In FIG. 3, the first temperature setting unit 11 sets a presettemperature for the air-conditioning target space for which a user hasrequested a change in the preset temperature. The second temperaturesetting unit 12 sets a preset temperature for adjacent air-conditioningspaces adjacent to the air-conditioning target space. In order torealize the preset temperature set by the first temperature setting unit11, the first air-conditioning air control unit 13 sets a first blowoutopening to blow out the air-conditioning air from among the multipleblowout openings of the multiple indoor units, and controls thetemperature, the airflow volume, and the blowout wind direction of theair-conditioning air sent out from the first blowout opening. In orderto realize the preset temperature set by the second temperature settingunit 12, the second air-conditioning air control unit 14 sets a secondblowout opening to blow out the air-conditioning air from among themultiple blowout openings of the multiple indoor units, and controls thetemperature, the airflow volume, and the blowout wind direction of theair-conditioning air sent out from the second blowout opening.

The second temperature setting unit 12 may set the preset temperature ofthe adjacent air-conditioning spaces so that the actual temperaturechange in the adjacent air-conditioning spaces will not exceed apredetermined range.

Next, taking a case of air cooling, the operation of theair-conditioning control system according to this Embodiment will bedescribed. FIG. 4 is a side view for explaining the case and includesthe users 51 a to 51 c and the indoor units 41 and 42. The operationflowchart is shown in FIG. 5.

When a seated user has specified a preset temperature, the firsttemperature setting unit 11 of the air-conditioning control systemfirstly determines that the space where the user having specified thepreset temperature is present is a target area, and determines thatspaces adjacent to the target space are adjacent areas, and then, sets apreset temperature regarded as an actual target temperature for thetarget area on the basis of the user-requested temperature.

Then, the air-conditioning control system collects temperature at eachuser's seat from the temperature sensor. If the temperature of thedetermined target area is different from the preset temperature, theair-conditioning control system operates to adjust the temperature tothe preset temperature. Determining that in the adjacent area where auser is present and has not specified the preset temperature, the userhas implicitly performed setting so as to make no change in the currenttemperature, the air-conditioning control system regards the currenttemperature as the preset temperature, and operates to adjust thetemperature to the preset temperature.

FIG. 4 shows a case for example, in which the user 51 b has specifiedthe preset temperature, and in which the air-conditioning control systemdetermines that the area where the user 51 b is seated is a target area(target space), and determines that the areas where the adjacent users51 a and 51 c are seated are adjacent areas (adjacent spaces).

Next, in order to adjust the temperature of the target area to thepreset temperature, the first air-conditioning air control unit 13 ofthe air-conditioning control system determines the wind direction of theclosest first blowout opening to the target area among the blowoutopenings facing thereto, and the change values of the blowouttemperature and the airflow volume of the indoor unit which includes theclosest first blowout opening. In FIG. 4, it is determined that theblowout opening 42 a is the closest first blowout opening, anddetermination is made with respect to the wind direction of the firstblowout opening and the change values of the temperature as well as theairflow volume of the indoor unit 42. The determination procedure of thechange values of the first blowout opening will be described withreference to FIG. 6 below.

As shown in FIG. 7, the blowout air from the vanes 41 a to 44 dinstalled in respective blowout openings is directed, in a planevertical to the floor, in a direction within the range of 0° to 90° withrespect to the floor, and also is directed, in a plane parallel to thefloor, in a direction within the range of −90° to 90°.

In setting the wind direction of the first blowout opening, the wind'sdepression direction θz and the wind's lateral direction θx aredetermined from the positions of the first blowout opening and the seatin the target area so that the wind blows against the seat, and then theangles of the vane 41 shown in FIG. 7 are changed to the determinedangles.

In setting the airflow volume of the indoor unit which includes thefirst blowout opening, firstly the blowout speed of the air-conditioningair blown out from the first blowout opening which enables theair-conditioning air to reach the seat in the target area at a speed,for example, of 0.3 m/s or less is calculated from the relation betweenthe airflow speed and the distance D from the first blowout opening tothe position of the seat in the target area, and secondly the blowoutairflow volume Va is calculated so as to satisfy the blowout speed.

The relation between the airflow volume Va from the blowout opening andthe airflow speed Vs at the blowout opening, as well as the relationbetween the distance from the blowout opening and the airflow speed are,for example, derived from results of observed values obtained from anexperiment in advance.

In the temperature settings of the indoor unit which includes the firstblowout opening, the preset temperature of the indoor unit is calculatedfor the space of the current air temperature Tn, using the relationbetween the reaching distance D of the air blown out at the airflowvolume of Va and the temperature change of the blowout air, and thetemperature difference ΔT between the current temperature Tn at the seatposition in the target area and the preset temperature Ts so that thetemperature of the blown out air reaching the seat position in thetarget area will be Ts-ΔT degrees Celsius, which is the presettemperature reduced by the temperature difference.

The relation between the reaching distance D of the air blown out fromthe blowout opening and the temperature change of the blowout air is,for example, derived from results of observed values obtained from anexperiment in advance.

The changed set values determined as above described for the firstblowout opening of the indoor unit 42 in the case of FIG. 4 are shown inFIG. 8.

Next, the air-conditioning control system calculates temperatureinfluence on the adjacent areas in a case where the air-conditioningsettings are changed as described above. A target area under an indoorunit would influence less the surroundings. However, in a case where thetarget area is somewhat away from the first blowout opening, such aslocated between indoor units, the air-conditioning air blown out isdiffused into an adjacent area close to the first blowout opening and anadjacent area in the side opposite to the first blowout opening withrespect to the target area as shown in FIG. 4.

The second temperature setting unit 12 of the air-conditioning controlsystem sets preset temperatures regarded as actual target temperaturesfor the adjacent areas on the basis of the calculation result.

The second air-conditioning air control unit 14 firstly calculates tofind an adjacent area where the temperature change exceeds thepredetermined temperature limit value, and next, determines the secondblowout opening which is not the former mentioned first blowout openingand is closest to the adjacent area found by the calculation from amongthe blowout openings facing an intermediate spot between the adjacentarea and the target area and then, determines the wind direction fromthe closest second blowout opening and the change values of the blowouttemperature as well as of the blowout airflow volume of the indoor unitwhich includes the second blowout opening, so as to less influence theadjacent area and make the temperature become the preset temperature. InFIG. 4, the adjacent area where the user 51 a is seated is an adjacentarea determined to be influenced; the blowout opening 41 c is determinedto be the second blowout opening; and the wind direction of the blowoutopening 41 c and the change values of the temperature as well as theairflow volume of the indoor unit 41 are determined. With reference toFIG. 9, a determination procedure for changing values of the secondblowout opening will be described below.

In setting the wind direction of the second blowout opening, a targetposition is determined whose horizontal position is the intermediatespot between the horizontal positions of the target area and theadjacent area and whose height is the same as the seat. Also thelongitudinal wind direction θz and the lateral wind direction θx aredetermined in which the wind blows from the position of the secondblowout opening to reach the target position.

In setting the airflow volume from the indoor unit which includes thesecond blowout opening, first the wind speed Vb at the target positionis calculated from the wind speed at the first blowout opening and therelation between the distance from the blowout opening and the airflowspeed, and then the airflow volume is computed so as to make the windspeed at the target position equal to the calculated wind speed.

In setting the temperature of the indoor unit which includes the secondblowout opening, the preset temperature of the indoor unit is calculatedfrom the relation between the temperature difference ΔTb from thecurrent temperature, calculated as an influence to the adjacent area andthe temperature change in the air which has been blown out at theairflow volume Va into the space of the current air temperature Tn andthen reaches a position the distance Db away, so that when reaching thetarget position, the temperature becomes Tsb+ΔTb, which is the sum ofthe adjacent area's preset temperature Tsb and the temperaturedifference.

As described above, the changed set values of the second blowout openingof the indoor unit 41 have been determined in the case of FIG. 4, andthe changed set values are shown together in FIG. 8.

Note that the set values of blowout openings other than the firstblowout opening and the second blowout opening remain unchanged from theset values before the user performed temperature setting. These valuesare also shown in FIG. 8 as the values for other blowout openings.

The air-conditioning control system changes the settings of the airconditioners according to the set values of the first and the secondblowout openings which are determined as described above. The angles ofthe vanes 41 a to 44 d are controlled to change the wind directions. Therotation speeds of the fans 41 e to 44 e of the air-conditioning indoorunits are controlled to change the airflow volumes. When changingtemperatures of the indoor units, the operation of the compressors andthe outdoor units are controlled to change the temperatures ofrefrigerants and the flow amounts thereof in order to lower the blowouttemperatures.

By the above-described control operation, not only the area under theindoor unit but also the areas between the indoor units can becontrolled to create the desired air-conditioned spaces.

The above-described control operation can also prevent the local airflowto the target area from entering the adjacent areas, to create a desiredair-conditioned space in the target area without impairing the comfortof the adjacent persons.

Embodiment 1 of the present invention has been described above. Theconcrete configuration for carrying out the invention, however, is notlimited to the description.

The system described above has been explained in a case of air-coolingoperation, but can similarly be applied to a case of heating operation.

In order to determine the blowout opening's wind direction and windspeed and the indoor unit's temperature, the relations among thedistance from the blowout opening, the temperature and the wind speedhave been derived from experimental results to be used. However, amethod such as Airflow Simulation and CFD analysis (Computational FluidDynamics) may be used to calculate in more detail how the blown outair-conditioning air diffuses into and influences the target area andthe surroundings.

Embodiment 2

FIG. 10 is a block diagram of an air-conditioning system according toEmbodiment 2 of the present invention. In the figure, the same symbolsas used in FIG. 1 are the same or the equivalent parts. In FIG. 10,position sensors 53 a to 53 i are connected to the air-conditioningcontrol network 21.

In the air-conditioning control system according to Embodiment 1, thepositions of the users and the temperature sensors 51 a to 51 i arestored in advance in the storage drive for later reference. As shown inFIG. 10, the positions of the users and the sensors 51 a to 51 i may beperiodically measured using the position sensors 53 a to 53 i, tocalculate the air-conditioning settings on the basis of the positioninformation.

Even if a user in the air-conditioning space moves, the configurationshown in FIG. 10 can make it possible to perform a suitableair-conditioning control according to the movement of the user.

Embodiment 3

FIG. 11 is a block diagram of an air-conditioning system according toEmbodiment 3 of the present invention. In the figure, the same symbolsas used in FIG. 1 are the same or the equivalent parts. In FIG. 11,comfort indicator sensors 54 a to 54 i are connected to theair-conditioning control network 21.

In the air-conditioning control system described in the formerembodiments, the preset temperatures are to be specified by users.Instead, as shown in FIG. 11, the users may input target thermalsensations or target comfort, using the sensors 54 a to 54 i eachmeasuring a comfort indicator such as PMV (Predicted Mean Vote: a meanof predicted thermal sensations).

With the configuration shown in FIG. 11, the preset temperatures can beset from the users' thermal sensations or comfort without users'specifying temperature in the air-conditioning space, thereby achievingan air-conditioning control suitable for the users' comfort indicators.

In the air-conditioning control systems shown above in Embodiment 1 toEmbodiment 3, the preset temperature is to be set by the user. Instead,the individual characteristics such as gender, age, temperaturepreference (sensitive to heat or cold), height, weight, metabolic rate,body fat mass, and clothing may be inputted in advance so that theair-conditioning control system can determine appropriately thecomfortable preset temperature for the individual user to use thetemperature as the target preset temperature.

The air-conditioning control systems described above includeair-conditioning indoor units each having blowout openings in the fourdirections and a suction opening at its center. The air-conditioningindoor unit is not limited to the above, and may have multiple blowoutopenings and multiple suction openings, both of which may be of freeshape.

INDUSTRIAL AVAILABILITY

As described above, the air-conditioning control system according to thepresent invention can be applied to the air-conditioning control systemfor air-conditioning the space such as an office where multiple usersare present.

BRIEF DESCRIPTION OF SYMBOLS

-   10: air-conditioning control system-   11: first temperature setting unit-   12: second temperature setting unit-   13: first air-conditioning air control unit-   14: second air-conditioning air control unit-   20: bus-   21: air-conditioning control network-   31: CPU-   32: ROM-   33: RAM-   34: storage drive-   35: mouse-   36: keyboard-   37: display-   38: input/output controller-   39: network controller-   41 to 44: air-conditioning indoor unit-   41 a to 44 d: blowout opening-   45: compressor-   46: fan-   51: user, temperature sensor-   52: air-conditioning controller-   53: position sensor-   54: PMV sensor

1-6. (canceled)
 7. An air-conditioning control system comprising: afirst temperature setter to set a preset temperature for anair-conditioning target space between two indoor units adjacent to eachother, the air-conditioning target space having been requested a changein the preset temperature by a user, the indoor units each includingmultiple blowout openings; a second temperature setter to set a presettemperature of an adjacent air-conditioning space adjacent to theair-conditioning target space, the adjunct air-conditioning space beinga space under one of the two indoor units adjacent to each other; afirst air-conditioning air controller to determine a first blowoutopening to blow out air-conditioning air toward the air-conditioningtarget space from among the multiple blowout openings of the multipleindoor units for realizing the preset temperature set by the firsttemperature setter, to control temperature and airflow volume of theair-conditioning air sent out from the first blowout opening, and tocontrol a blowout wind direction of the air-conditioning air; and asecond air-conditioning air controller to determine a second blowoutopening to blow out air-conditioning air toward between theair-conditioning target space and the adjunct air-conditioning spacefrom among the multiple blowout openings of the multiple indoor unitsfor realizing the preset temperature set by the second temperaturesetter, to control temperature and airflow volume of theair-conditioning air sent out from the second blowout opening, and tocontrol a blowout wind direction of the air-conditioning air.
 8. Theair-conditioning control system according to claim 7, wherein the secondtemperature setter sets the preset temperature of the adjacentair-conditioning space so that an actual temperature change in theadjacent air-conditioning space will not exceed a predetermined range.9. The air-conditioning control system according to claim 7, wherein thesecond air-conditioning air controller controls the second blowoutopening to blow out the air-conditioning air so that the temperature ofthe adjunct air conditioning space will be equal to the temperature setby the second temperature setter, considering an influence of theair-conditioning air from the first blowout opening.
 10. Theair-conditioning control system according to claim 8, wherein the secondair-conditioning air controller controls the second blowout opening toblow out the air-conditioning air so that the temperature of the adjunctair conditioning space will be equal to the temperature set by thesecond temperature setter, considering an influence of theair-conditioning air from the first blowout opening.
 11. Theair-conditioning control system according to claim 7, further comprisingtemperature sensors to obtain temperatures in the air-conditioningtarget space and the adjacent air-conditioning space.
 12. Theair-conditioning control system according to claim 8, further comprisingtemperature sensors to obtain temperatures in the air-conditioningtarget space and the adjacent air-conditioning space.
 13. Theair-conditioning control system according to claim 9, further comprisingtemperature sensors to obtain temperatures in the air-conditioningtarget space and the adjacent air-conditioning space.
 14. Theair-conditioning control system according to claim 10, furthercomprising temperature sensors to obtain temperatures in theair-conditioning target space and the adjacent air-conditioning space.15. The air-conditioning control system according to claim 7, furthercomprising a position sensor to obtain position information of the userwho has requested the preset temperature to be set by the firsttemperature setter, wherein the first air-conditioning air controllerand the second air-conditioning air controller control the blowout winddirections of the air-conditioning air sent out to the air-conditioningtarget space on the basis of the position information.
 16. Theair-conditioning control system according to claim 8, further comprisinga position sensor to obtain position information of the user who hasrequested the preset temperature to be set by the first temperaturesetter, wherein the first air-conditioning air controller and the secondair-conditioning air controller control the blowout wind directions ofthe air-conditioning air sent out to the air-conditioning target spaceon the basis of the position information.
 17. The air-conditioningcontrol system according to claim 9, further comprising a positionsensor to obtain position information of the user who has requested thepreset temperature to be set by the first temperature setter, whereinthe first air-conditioning air controller and the secondair-conditioning air controller control the blowout wind directions ofthe air-conditioning air sent out to the air-conditioning target spaceon the basis of the position information.
 18. The air-conditioningcontrol system according to claim 10, further comprising a positionsensor to obtain position information of the user who has requested thepreset temperature to be set by the first temperature setter, whereinthe first air-conditioning air controller and the secondair-conditioning air controller control the blowout wind directions ofthe air-conditioning air sent out to the air-conditioning target spaceon the basis of the position information.
 19. The air-conditioningcontrol system according to claim 11, further comprising a positionsensor to obtain position information of the user who has requested thepreset temperature to be set by the first temperature setter, whereinthe first air-conditioning air controller and the secondair-conditioning air controller control the blowout wind directions ofthe air-conditioning air sent out to the air-conditioning target spaceon the basis of the position information.
 20. The air-conditioningcontrol system according to claim 12, further comprising a positionsensor to obtain position information of the user who has requested thepreset temperature to be set by the first temperature setter, whereinthe first air-conditioning air controller and the secondair-conditioning air controller control the blowout wind directions ofthe air-conditioning air sent out to the air-conditioning target spaceon the basis of the position information.
 21. The air-conditioningcontrol system according to claim 7, further comprising a comfortindicator sensor to obtain a comfort indicator of the user who hasrequested the preset temperature to be set by the first temperaturesetter, wherein the first temperature setter and the second temperaturesetter set the respective preset temperatures on the basis of thecomfort indicator.
 22. The air-conditioning control system according toclaim 8, further comprising a comfort indicator sensor to obtain acomfort indicator of the user who has requested the preset temperatureto be set by the first temperature setter, wherein the first temperaturesetter and the second temperature setter set the respective presettemperatures on the basis of the comfort indicator.
 23. Theair-conditioning control system according to claim 9, further comprisinga comfort indicator sensor to obtain a comfort indicator of the user whohas requested the preset temperature to be set by the first temperaturesetter, wherein the first temperature setter and the second temperaturesetter set the respective preset temperatures on the basis of thecomfort indicator.
 24. The air-conditioning control system according toclaim 10, further comprising a comfort indicator sensor to obtain acomfort indicator of the user who has requested the preset temperatureto be set by the first temperature setter, wherein the first temperaturesetter and the second temperature setter set the respective presettemperatures on the basis of the comfort indicator.
 25. Theair-conditioning control system according to claim 11, furthercomprising a comfort indicator sensor to obtain a comfort indicator ofthe user who has requested the preset temperature to be set by the firsttemperature setter, wherein the first temperature setter and the secondtemperature setter set the respective preset temperatures on the basisof the comfort indicator.
 26. The air-conditioning control systemaccording to claim 15, further comprising a comfort indicator sensor toobtain a comfort indicator of the user who has requested the presettemperature to be set by the first temperature setter, wherein the firsttemperature setter and the second temperature setter set the respectivepreset temperatures on the basis of the comfort indicator.